/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.hadoop.hbase.client;

import java.io.IOException;

import org.apache.hadoop.conf.Configuration;
import org.apache.yetus.audience.InterfaceAudience;
import org.apache.hadoop.hbase.exceptions.PreemptiveFastFailException;

/**
 * Class that acts as a NoOpInterceptor. This class is used in case the
 * RetryingCallerInterceptor was not configured correctly or an
 * RetryingCallerInterceptor was never configured in the first place.
 *
 */
@InterfaceAudience.Private
class NoOpRetryableCallerInterceptor extends RetryingCallerInterceptor {
    private static final RetryingCallerInterceptorContext NO_OP_CONTEXT = new NoOpRetryingInterceptorContext();

    public NoOpRetryableCallerInterceptor() {
    }

    public NoOpRetryableCallerInterceptor(Configuration conf) {
        super();
    }

    @Override
    public void intercept(RetryingCallerInterceptorContext abstractRetryingCallerInterceptorContext) throws PreemptiveFastFailException {
    }

    @Override
    public void handleFailure(RetryingCallerInterceptorContext context, Throwable t) throws IOException {
    }

    @Override
    public void updateFailureInfo(RetryingCallerInterceptorContext context) {
    }

    @Override
    public RetryingCallerInterceptorContext createEmptyContext() {
        return NO_OP_CONTEXT;
    }

    @Override
    public String toString() {
        return "NoOpRetryableCallerInterceptor";
    }
}
